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Bioprocessing of mine waste: effects of process conditions ...

2019-6-10  Large volumes of waste from the mining and processing industry, particularly flotation tailings of polymetallic ores, have accumulated all over the world. Mine tailings can cause severe environmental pollution and pose significant risks to both human and environmental health. However, by the contents of their metals, mine tailings can be regarded as sources for extracting copper, zinc, gold ...

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From Tailings to Treasure? Miners Make ... - Advancing

2015-5-7  Mine sites typically manage tailings by constructing ponds secured by dams. According to the web site miningfacts, another strategy is to produce thickened tailings, which are pressed or have chemicals added to remove excess water. Thickened tailings can be mixed with cement and used in construction or as backfill in underground mines.

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(PDF) Methods for the disposal and storage of mine tailings

2020-6-8  A promising technology with alternative usage of tailings as construction and support materials in mine sites is tailings shotcrete (TSC), a mixture of fine tailings, high cement content, and water.

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Geochemistry of Mine Tailings from Processing of Siderite ...

2016-2-9  This work describes the geochemistry, mineralogy, and mobility of selected metals (Cu, Pb, Zn) and metalloids (As, Sb) in a tailings impoundment in the village of Slovinky (eastern Slovakia). The tailings were covered unevenly by slag from processing of Cu wastes. The tailings and slag both have negligible potential for acid mine drainage formation, thus neutral to alkaline conditions ...

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Managing tailings from mining operations

2021-8-17  Tailings are the mineral waste remaining after the processing of ore to extract mineral concentrates and are typically stored within an engineered containment structure known as a tailing storage facility or TSF. A number of TSFs remain active in South Australia, the largest associated with the Olympic Dam mine

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Modeling hydration of mine tailings: Production of ...

2020-11-1  Mine tailing samples were collected from a Cu/Ni mine located in Northern Europe. Samples were ground using ball mill or disc mill , bringing the mean diameter of particles to 7.5 and 4.0 μm, respectively. Particle size distributions were measured by laser diffraction. Additionally, mine tailings were characterized by XRD.

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Minerals Free Full-Text Gold Mine Tailings: A ...

Mining of minerals such as gold, copper, and platinum has been one of several activities sustaining the economy of South Africa. However, the mining sector has contributed significantly to environmental contamination through the improper disposal of mine tailings which covers vast areas of land. Therefore, this study utilised a vitrification process to manufacture glass from gold mine tailings.

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Tailingsfo What Are Tailings? - Their nature and

2021-1-4  Tailings consist of ground rock and process effluents that are generated in a mine processing plant. Mechanical and chemical processes are used to extract the desired product from the run of the mine ore and produce a waste stream known as tailings. This process of product extraction is never 100% efficient, nor is it possible to reclaim all ...

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Tailings Mineral Industry Solution - westech-inc

2021-8-21  By utilizing a paste thickener, the thickened tailings stream is deposited into the existing pond, increasing the life of the impoundment. The existing free water in the pond will be displaced and available for recovery and the higher concentration and drying properties of the paste will take up less space, extending the life of the pond.

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Recycling of phosphate mine tailings for the production of ...

2018-6-1  1. Introduction. Phosphate sludge is one of the fine by-products generated by the phosphate mine activity. It is generally collected during the beneficiation process of phosphate (washing and flotation) (Loutou et al., 2013).This industry generates large quantities of phosphate sludge (Concentrator tailings) that are generally deposited in tailing pounds within the mine site surface, which ...

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About Tailings Fact Sheet - Ballarat Gold Mine

Processing involves crushing the ore into sand to liberate and recover the gold. What’s left over is called tailings. Approximately 95% of the tailings are generated from gravity separation methods, which are chemical free and exploit the difference in density

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Minerals Free Full-Text Gold Mine Tailings: A ...

Mining of minerals such as gold, copper, and platinum has been one of several activities sustaining the economy of South Africa. However, the mining sector has contributed significantly to environmental contamination through the improper disposal of mine tailings which covers vast areas of land. Therefore, this study utilised a vitrification process to manufacture glass from gold mine tailings.

More

Mine Tailings - groundtruthtrekking

2010-12-15  Mine tailings are the ore waste of mines, and are typically a mud-like material. Worldwide, the storage and handling of tailings is a major environmental issue. Many tailings are toxic and must be kept perpetualy isolated from the environment. Scale of tailings production is immense, since metal extraction is usually only ounces or pounds, for ...

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Tailings management Sibanye-Stillwater

2021-8-20  Sibanye-Stillwater is committed to the safe and environmentally responsible stewardship of our tailings storage facilities. Tailings facilities store a mine’s primary waste stream. Without proper management, these facilities can pose a significant risk to the natural and social environment. Catastrophic tailings facility failures can devastate the environment and destroy lives and ...

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MANAGEMENT OF TAILINGS: PAST, PRESENT AND FUTURE

2020-9-8  Most tailings can be thickened mechanically, some to a paste or filter cake consistency. However, clay mineral-rich tailings, such as coal tailings, mineral sands tailings, tailings from some oxide ores, and residue from the processing of bauxite, nickel

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Mineralogical and chemical characteristics of the lead ...

2017-5-25  and soil are effective for selecting remediation strategies. A lead-zinc mine and its tailings pond in Hunan Province (China) have an over 50-year history (Lei et al., 2015). However, there are few reports about the research on the mineralogical and chemical

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Human Health and Environmental Damages from Mining

2016-3-27  identifies damage from mining and mineral processing wastes at 114 mining sites in 9 states.2 These cases include some damages from mineral processing wastes because mining and mineral processing operations are co-located at some facilities. (3) Mining Sites on the National Priorities List: NPL Site Summary Report, U.S.

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About Tailings Fact Sheet - Ballarat Gold Mine

Processing involves crushing the ore into sand to liberate and recover the gold. What’s left over is called tailings. Approximately 95% of the tailings are generated from gravity separation methods, which are chemical free and exploit the difference in density

More

Mine Tailings - groundtruthtrekking

2010-12-15  Mine tailings are the ore waste of mines, and are typically a mud-like material. Worldwide, the storage and handling of tailings is a major environmental issue. Many tailings are toxic and must be kept perpetualy isolated from the environment. Scale of tailings production is immense, since metal extraction is usually only ounces or pounds, for ...

More

Tailings Fact Sheet - s24.q4cdn

2020-5-20  Tailings can be dewatered or modified in other ways prior to deposition. The current methods include: 1. Thickened tailings (which involves a process of dewatering to form a low solids content slurry); 2. Paste (which includes dewatering until the tailings do not segregate as they are deposited and have minimal excess water); 3.

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MANAGEMENT OF TAILINGS: PAST, PRESENT AND FUTURE

2020-9-8  Most tailings can be thickened mechanically, some to a paste or filter cake consistency. However, clay mineral-rich tailings, such as coal tailings, mineral sands tailings, tailings from some oxide ores, and residue from the processing of bauxite, nickel

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ESTIMATING HYDROCOMPRESSION SETTLEMENT OF

is tailing from gold mine site in Aroroy, Masbate which undergoes the same chemical process as TS#2. Tailings from the processing plant are discharged into a large tailings dam. Water decanted from the tailings dam is returned to the processing plant for possible re

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Tailings: Dangerous Wastes or Precious Treasures? Fote ...

2020-7-1  Tailings definition: tailings are composed of waste rocks and industrial wastewater produced by mineral processing plants. After processing the minerals by facilities and chemicals and extracted the required products, the remaining minerals are called tailings, mine tailings or mine wastes.

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Mineralogical and chemical characteristics of the lead ...

2017-5-25  and soil are effective for selecting remediation strategies. A lead-zinc mine and its tailings pond in Hunan Province (China) have an over 50-year history (Lei et al., 2015). However, there are few reports about the research on the mineralogical and chemical

More

Minerals Free Full-Text Coal-Mining Tailings as a ...

The generation of enormous volumes of mine-tailing waste is standard practice in the mining industry. Large quantities of these tailings are also sources of kaolinite-rich materials that accumulate in slag heaps, causing significant environmental

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Human Health and Environmental Damages from Mining

2016-3-27  identifies damage from mining and mineral processing wastes at 114 mining sites in 9 states.2 These cases include some damages from mineral processing wastes because mining and mineral processing operations are co-located at some facilities. (3) Mining Sites on the National Priorities List: NPL Site Summary Report, U.S.

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Can 'alternative tailings disposal' become the norm ...

2021-5-27  Can 'alternative tailings disposal' become the norm? New technology promises to reduce water, create a smaller environmental footprint and reduce long-term risks for mines. By optimising water recovery, ATD technologies promise to reduce water use at mines. Processing > Chemicals

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